Optical bleaching and dose-response behaviour of Al and Ti centers in quartz (A. R. Zuccarello, A. M. Gueli, C. Monaco, A. Occhipinti, G. M. Ristuccia, G. Stella, & S. O. Troja , Trans.). (2010). Alpine and Mediterranean Quaternary, 23(2), 251-256. https://amq.aiqua.it/index.php/amq/article/view/280